Merge branch 'craigmsmith-update-sast-SEARCH_MAX_DEPTH-default' into 'master'

Update SAST SEARCH_MAX_DEPTH documented default

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/145763



Merged-by: Russell Dickenson <rdickenson@gitlab.com>
Approved-by: Russell Dickenson <rdickenson@gitlab.com>
Co-authored-by: Craig Smith <5344211-craigmsmith@users.noreply.gitlab.com>